Regulator.



G. W. COLLIN.

Patented Mar. 2, 1909..

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nnrrnn sfrnfrnsmrigrnnr orrron GEORGE WOLVERTON COLLIN, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR TO THE SAFETY CAR HEATING AND LIGHTING COMPANY, A CORPORATION OF NEW JERSEY.

RE GULATOR.

Patented March 2, 1909.

Application led July 18, 1903. Serial No. 166,174.

T o all whom it may concern:

Be it known that I, GEORGE WoLvERToN COLLIN, a citizen of the United States, residing at Bridgeport, county of Fairfield, and State of Connecticut, have invented certain new and useful Improvements in Regulators, of which the following is a specification.

My invention relates to regulators, and has for its object to produce an efficiently acting regulatorl which shall be simple in character.

To these ends, my invention consists in the construction hereinafter set forth and claimed.

In the drawing Figure I is a sectional elevation of a regulator in which my invention is embodied; Fig. II is a sectional view on a reduced scale showing the construction of the base of the regulator; and Fig. III is a plan view of the base of the regulator. Fig. IV is an elevation of the shaft designed to control the regulating valve. Fig. V is a similar view of a detail of construction.

The base of the regulator a is provided with a well b having an off-set c by which the low pressure pipe can be connected to the system and the operating shaft hereinafter mentioned can be properly mounted. Mounted in the well bis a valve casting or bracket d which is also shown as provided with a bearing e for a shaft The valve bracket or casting is recessed for the reception of a nut g which is adjustable therein and held in place by a set screw h. rThe shaft f is provided with a screw thread i Working in the nut and is bored axially at one end for the reception of a ball le, the stem m of a valve n having a recessed head and whose stem is connected to the valve o. The valve stem is held in place in the bore of the shaft by a swivel-pin l. These valves n and 0 are located on opposite sides of a gas-way p and are adapted respectively to valve seats q and r. The valve o works in the bore s of the bushing t through which gas is brought to the regulator in the direction of the arrow, which bushing is screw threaded into the valve casting or bracket and provided With grooves u for the passage of gas. The end of the shaft f is recessed at u for the passage of gas so that when the shaft is turned so as to bring the recess o opposite the port w of the casting, gas will be free to iiow through the apparatus. The recess is the equivalent of a valve. The shaft f is provided with a cam x Which is shaped so as to open the regulator valve to the desired amount in accordance with the pressure, it being well understood that at a low pressure of gas the port o of the regulator should be open wider than when the gas is at high pressure. This cam is plotted in accordance with the necessary ratio of the opening to the pressure. Connected to the cam x is a band y suitably connected to a pressure diaphragm z, which diaphragm receives the gas pressure and operates the regulator. The other end of the shaft j' is provided with a lug l connected to the inner end of the spring 2 whose outer end is connected to a spring barrel 3 carried upon a screw i which is tapped through the frame or casing a of the regulator and preferably provided with a lock nut 5 by which the said screw may be locked in place after it has been moved to adjust the tension of the spring 2 with respect to that of the tension of the diaphragm 2.

The operation of the construction is as follows z-The pressure of the gas on the diaphragm will cause the same to assume a more or less flexed position and in assuming such position, it will rotate the shaft f more or less, which will by means of the screw and nut connection g and 'i cause the valve n to be moved to open the port which it controls and brings the port o more or less into communication with the port w to effect the regulation of the flow of the gas. When the gas pressure is reduced the spring 2 will serve to move the parts in the opposite direction.

It may sometimes occur that the diaphragm z or a pipe on the low pressure side of the regulator will break, in which case the flow of gas should be stopped. In either event the spring 2 will serve to rotate the shaftf so as to cause the valve o to be firmly seated against its seat r in which action the said spring is aided by the gas pressure.

Having described my invention what I claim and desire to secure by Letters Patent is 1. A pressure regulating device embodying in its structure a rotary longitudinally movable shaft under spring tension, a pressure device for moving the shaft in a direction opposite to the direction exerted by the spring tension, and a pressure regulating means having a loose connection with said shaft and adapted to be controlled thereby.

2. In a regulator, the combination of a pressure receiving device and shaft and cam lIO on the shaft, said cam being directly connected to the pressure receiving device and a valve under the control of the said shaft.

3. A regulator embodying in its structure a gas pressure receiving diaphragm, a valve and a rotary shaft controlling the said valve and a cam on the said shaft connected to the gas pressure receiving device adapted to open the valve Wider at the beginning of the movement of the pressure receiving device than at a later period in such movement.

4. In a regulator, the combination of a pressure diaphragm clamped at its edges, a shaft under spring tension, a cam connection between the said shaft and the pressure diaphragm, a pair of ports and oppositely placed valves under the control of the shaft and adapted to control either of the said ports in accordance With the position of the diaphragm.

5. In a gas pressure regulator, the combination of a pressure diaphragm, a rotary and longitudinally movab e shaft, a spring tension device for the rotary shaft, a connec- Y tion between the rotary shaft and the pressure diaphragm and a plurality of valves under the control of the said shaft and oppositely arranged valve seats co-acting With the said valves.

6. In a regulator, in combination, a gas pressure receiving diaphragm, a valve, a cam, and connecting means between said cam and said gas pressure receiving diaphragm, said cam being adapted upon a given movement of said diaphragm to pro` duce a variable operation of said valve.V

GEORGE WON-ERTON COLLIN. l/Vitnesses: Y

ELMER E. ALLBRE, GEO. E. Monsn. 

